Hi Jeff,
Good question!
according to my research the Fe2d was powered by a "R-R 250 HP Eagle" engine. Your A3 had engine no 1/250/65.
Well. There were 3 Eagle engines rated at 250HP, the R-R 250 HP Mk. II, the R-R 250 HP Mk. III and the Mk. IV. The 36 built Eagle Mk. IIs were exclusively installed into the Short Bombers. The Eagle V (designation R-R 275HP, Mk. I) was rated at 275 HP. The next version of the Eagle, the Mk. VI, was rated at 275 HP as well, but got a doubled engine igniter including four magnetos as did all the later eagles up to the Eagle VIII.
Have a look at the archive photos on the WNW homepage, Accessoires, Rolls-Royce Eagle (132E0022):
http://www.wingnutwings.com/ww/productdetail?productid=3121&cat=1Here you see several photos of Fe2ds with "R-R III, IV or V" engines, according to the photo titles.
Here:
http://www.wingnutwings.com/ww/productdetail?productid=3121&cat=4you see scetches of the R-R Eagle II(late), III and IV (they look the same), of the VI and VII and a last one of the VII. If you throw an eye on the parts of the sprues and these sketches, you'll see the only really visible differende between the R-R III/IV/V and late R-Rs are the doubled igniter and the four magnetos. The R-R III/IV/V didn't have those. Well, that brought me to two conclusions:
1. Whatever R-R 250HP engine (The Mk. II, III or the mk. IV) powered the Fe2d, they looked the same and even looked exactly like the R-R V (although rated at 275HP). Even the guys at Wingnut Wings couldn't distinguish them.
2. The WNW sprue 132E0022 contains all the parts you need to build a 250 HP R-R Eagle for a Fe2d.
Now I'd add a third conclusion: to call 132E0022 "266-375 HP" on the WNW homepage is nonsense. There is no R-R Eagle rated at 266HP and even the R-R VIII was only rated at 300 HP, not 375.
I used the WNW R-R Eagle according to the drawings on their homepage. I didn't follow the online instructions that show the later eagles with double ignition and four magnetos.
Does that help? I admit, it's no 100% proof, but as we've got all the available literature who can proove us wrong
?
Best regards
Andreas